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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef SubtreeLayoutScope_h | 31 #ifndef SubtreeLayoutScope_h |
32 #define SubtreeLayoutScope_h | 32 #define SubtreeLayoutScope_h |
33 | 33 |
| 34 #include "core/inspector/InspectorTraceEvents.h" |
34 #include "wtf/HashSet.h" | 35 #include "wtf/HashSet.h" |
35 | 36 |
36 // This is the way to mark a subtree as needing layout during layout, | 37 // This is the way to mark a subtree as needing layout during layout, |
37 // e.g. for the purposes of doing a multipass layout. | 38 // e.g. for the purposes of doing a multipass layout. |
38 // | 39 // |
39 // It should only be used during layout. Outside of layout, you should | 40 // It should only be used during layout. Outside of layout, you should |
40 // just call renderer->setNeedsLayout() directly. | 41 // just call renderer->setNeedsLayout() directly. |
41 // | 42 // |
42 // It ensures that you don't accidentally mark part of the tree as | 43 // It ensures that you don't accidentally mark part of the tree as |
43 // needing layout and not actually lay it out. | 44 // needing layout and not actually lay it out. |
44 | 45 |
45 namespace blink { | 46 namespace blink { |
46 | 47 |
47 class LayoutObject; | 48 class LayoutObject; |
48 | 49 |
49 class SubtreeLayoutScope { | 50 class SubtreeLayoutScope { |
50 public: | 51 public: |
51 SubtreeLayoutScope(LayoutObject& root); | 52 SubtreeLayoutScope(LayoutObject& root); |
52 ~SubtreeLayoutScope(); | 53 ~SubtreeLayoutScope(); |
53 | 54 |
54 void setNeedsLayout(LayoutObject* descendant); | 55 void setNeedsLayout(LayoutObject* descendant, LayoutInvalidationReasonForTra
cing); |
55 void setChildNeedsLayout(LayoutObject* descendant); | 56 void setChildNeedsLayout(LayoutObject* descendant); |
56 | 57 |
57 LayoutObject& root() { return m_root; } | 58 LayoutObject& root() { return m_root; } |
58 void addRendererToLayout(LayoutObject* renderer); | 59 void addRendererToLayout(LayoutObject* renderer); |
59 | 60 |
60 private: | 61 private: |
61 LayoutObject& m_root; | 62 LayoutObject& m_root; |
62 | 63 |
63 #if ENABLE(ASSERT) | 64 #if ENABLE(ASSERT) |
64 HashSet<LayoutObject*> m_renderersToLayout; | 65 HashSet<LayoutObject*> m_renderersToLayout; |
65 #endif | 66 #endif |
66 }; | 67 }; |
67 | 68 |
68 } | 69 } |
69 | 70 |
70 #endif | 71 #endif |
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